Jiff
I understand your last comment - but only up to a point.
But I have much more sympathy for Nick Lappos.
It must be a pain in the butt (as our American cousins might say) for a Test Pilot who voluntarily gives his time to contribute to the forum to be constantly contradicted by the ramblings of a geriatric engineer (mechanic) who's isn't and never even has been a pilot.
I know Lu calls himself "a consultant", but the guy who just sold me a new kitchen also told me he was a "consultant". (I always thought they were called salemen, but you learn something every day).
Anyone can call himself a "consultant" - it means the square root of you know what!